NZ570867A - Blade with overlapping curved slats - Google Patents
Blade with overlapping curved slatsInfo
- Publication number
- NZ570867A NZ570867A NZ570867A NZ57086707A NZ570867A NZ 570867 A NZ570867 A NZ 570867A NZ 570867 A NZ570867 A NZ 570867A NZ 57086707 A NZ57086707 A NZ 57086707A NZ 570867 A NZ570867 A NZ 570867A
- Authority
- NZ
- New Zealand
- Prior art keywords
- elements
- blade
- impeller wheel
- blade according
- wheel
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
- F04D29/242—Geometry, shape
- F04D29/245—Geometry, shape for special effects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B17/00—Other machines or engines
- F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
- F03B17/062—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction
- F03B17/063—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction the flow engaging parts having no movement relative to the rotor during its rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/24—Rotors for turbines
- F05B2240/244—Rotors for turbines of the cross-flow, e.g. Banki, Ossberger type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Hydraulic Turbines (AREA)
- Toys (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Disclosed is a blade (1) for an impeller wheel (3) for use in a water wheel. The blade comprises at least two elements (4) which are lamelliform or slat-like. The elements are separated by an intermediate space and at are least partly overlapping.
Description
<div class="application article clearfix" id="description">
<p class="printTableText" lang="en">14/07 2010 WED 9:21 FAX 61 2 8231 1099 FB RICE & CO @004/012 <br><br>
Received at IPONZ on 14/7/2010 <br><br>
1 <br><br>
Blade for an impeller wheel <br><br>
The invention concerns a blade for an impeller wheel. <br><br>
5 According to the state-of-the-art one-piece, continuons blades are known for impeller wheels. Due to the enclosed type of construction of these blades disturbing turbulences occur on the rear. <br><br>
Therefore the invention aims to produce a blade for an impeller wheel that may achieve 10 an improvement of the turbulence on the rear of the blade. <br><br>
According to the invention there is provided a blade for an impeller wheel wherein the blade comprises at least two elements and wherein the elements are separated by an intermediate space. <br><br>
15 <br><br>
In an improved embodiment of the invention the elements are a blade according to claim 1, wherein the elements are lamella-like, and arranged generally parallel to one another and at least partly overlapping. <br><br>
20 A further advantageous feature of the invention may be that the elements are provided offset. <br><br>
In a preferred embodiment the elements have a curvature in the direction of the inflow and are flattened in the direction of discharge. The curvature can be concave or convex. <br><br>
25 <br><br>
A further advantageous feature of the invention may be that the elements are at an angle relative one another. <br><br>
It could be an advantage if the angle of the elements relative an imaginary axis of the 30 blade increases from the outside towards the inside. <br><br>
In a preferred embodiment the distance between the elements can be the same. <br><br>
Received at IPONZ on 31 March 2011 <br><br>
2 <br><br>
The invention, together with further advantages, is explained in detail below based on a non-limiting embodiment, that is illustrated in the drawings. They show in: <br><br>
Fig. 1 - a schematic illustration of a cross-section of an impeller wheel with blades 5 known from the state-of-the-art, <br><br>
Fig.2 - a schematic illustration of a cross-section of an element according to the invention, <br><br>
10 Fig.3 - a schematic illustration of a cross-section of an impeller wheel with blades comprising elements according to the invention, <br><br>
Fig.4 - a schematic illustration of a cross-section of an impeller wheel with blades comprising elements according to the invention and an imaginary centreline, <br><br>
15 <br><br>
Fig.5 - a schematic illustration of a cross-section of an alternative impeller wheel with blades comprising elements according to the invention. <br><br>
Fig. 1 is the schematic illustration of a section through a known impeller wheel (3). 20 According to Fig. 1 it comprises an impeller wheel (3) at least one blade (1) and a hub (2). <br><br>
In the schematic illustration of Fig.2 one can see the oblique view of an element (4) according to the invention, once in the direction of inflow and once in the direction of 25 discharge. The direction of flow of the water (5) and the direction of rotation of the impeller (6) wheel are indicated. The element (4) can have a curvature on that side where the element is contacted by water, and can flatten towards the hub (2) or towards the inner end of the element (4) or can be straight. A concave or convex curvature proved itself advantageous. In fig. 2 the elements (4) are shown to have an 30 inlet edge (10 ) and an outlet edge (12). The elements have a curvature (11) which is located closer to the inlet edge, while the elements are elongated in direction to the outlet edge (12). The convex side (9) of the elements is arranged in rotational direction (6) of the impeller wheel. <br><br>
35 A particular embodiment of the invention is shown in Fig.3. A plurality of blades (1), formed from a plurality of elements (4), are mounted on an impeller wheel (3). <br><br>
Received at IPONZ on 31 March 2011 <br><br>
3 <br><br>
By rotating the entire blade (1) around the hub (2) of the impeller wheel (3) the position of the elements (4) relative the flow is continuously altered. When the blade (1) submerges (one element (4) after another) the outermost element (4) is in a position with a very low resistance to flow. After a further rotation of the blade (1) the next 5 innermost element (4) also submerges into the flow. In a position perpendicularly to the flow the elements (4) act almost as a blade (1) made of one piece. In other positions of the blade (1) according to the invention the water can pass through the intermediate spaces. These intermediate spaces characterise the lamella or slat-like blades (1). Disturbing turbulences on the rear of the blades (1) are reduced and the 10 forces acting against the movement of the impeller wheel (3) are reduced. The blade (1), formed from a plurality of elements (4) or the imaginary centreline (7), can be either curved or straight. <br><br>
As Fig.4 shows, the impeller wheel (3) in the embodiment according to the invention 15 with the blades (1) formed from elements (4) can be exposed to flow from both directions. Depending on the strength of the flow it may be necessary to align the blades (1) in the direction of flow in an open or closed manner. In Fig. 4, the interior of the impeller wheel is denoted with the numeral (8). <br><br>
20 Fig.5 shows a particularly effective embodiment of the subject matter of the invention. The longitudinal section of the one-piece blade (1) has a centreline (7). This centreline (7) corresponds to the curvature of the blade (1). At least two elements (4) of the subject matter of the invention can be so arranged on an imaginary centreline (7), that the angle between the imaginary centreline (7) and the first element (4) is smaller than 25 the angle between the imaginary centreline (7) and the second element (4). The intersections of the elements (4) and of the imaginary centreline (1) can have the same distance to one another on the imaginary centreline (7). However, in a modified embodiment the distances may be different. In a particular effective embodiment the elements (4) may be of different size. The size of the elements (4) can decrease from 30 the outside towards the inside. Due to this the distance between the elements (4) can be also different. The reduction of the distances from the outside towards the inside has proved itself particularly effective. <br><br></p>
</div>
Claims (9)
1. A blade for an impeller wheel for use in a water wheel wherein the blade comprises at least two elements which are lamelliform or slat-like and wherein the elements 5 are separated by an intermediate space and at least partly overlapping.
2. A blade according to claim 1 , wherein the elements are offset with respect to each other. 10
3. A blade according to claim 1 or 2, wherein the elements have a blade-like construction.
4. A blade according to any one of the preceding claims, wherein the elements are at an angle relative one another. 15
5. A blade according to claim 4, wherein the angle of between the elements relative a central line increases from an outer portion of the impeller wheel to an inner portion of the impeller wheel. 20
6. A blade according to any one of the preceding claims, wherein the elements have a curvature in the a direction of an inflow of a fluid that is to interact with the wheel and are flattened in a direction of discharge of the fluid.
7. A blade according to claim 6, wherein the curvature is concave or convex. 25
8. A water wheel with at least one blade according to any one of the preceding claims.
9. A blade substantially as hereinbefore described with reference to Figures 2 to 5 of 30 the accompanying drawings.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0022806A AT503184B1 (en) | 2006-02-14 | 2006-02-14 | SUBJECT WATER WHEEL |
PCT/AT2007/000026 WO2007092970A1 (en) | 2006-02-14 | 2007-01-23 | Blade for an impeller wheel |
Publications (1)
Publication Number | Publication Date |
---|---|
NZ570867A true NZ570867A (en) | 2011-06-30 |
Family
ID=37811634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NZ570867A NZ570867A (en) | 2006-02-14 | 2007-01-23 | Blade with overlapping curved slats |
Country Status (25)
Country | Link |
---|---|
US (1) | US8641364B2 (en) |
EP (1) | EP1818543B1 (en) |
KR (1) | KR101360875B1 (en) |
CN (1) | CN101395380B (en) |
AT (2) | AT503184B1 (en) |
AU (1) | AU2007215355B2 (en) |
BR (1) | BRPI0707797A2 (en) |
CA (1) | CA2654448C (en) |
DK (1) | DK1818543T3 (en) |
EA (1) | EA013916B1 (en) |
ES (1) | ES2404310T3 (en) |
GE (1) | GEP20115209B (en) |
HK (1) | HK1130871A1 (en) |
IL (1) | IL193448A (en) |
ME (1) | MEP7308A (en) |
MY (1) | MY150412A (en) |
NO (1) | NO20083881L (en) |
NZ (1) | NZ570867A (en) |
PL (1) | PL1818543T3 (en) |
PT (1) | PT1818543E (en) |
RS (1) | RS52591B (en) |
SI (1) | SI1818543T1 (en) |
UA (1) | UA93398C2 (en) |
WO (1) | WO2007092970A1 (en) |
ZA (1) | ZA200807308B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT506106B1 (en) * | 2007-12-11 | 2010-02-15 | Riegerbauer Hermann | WATER WHEEL |
AT507922A1 (en) * | 2009-02-25 | 2010-09-15 | Hermann Riegerbauer | WATER WHEEL |
DE102010050878B3 (en) * | 2010-11-09 | 2012-03-01 | Henning Bänecke | Undershot water wheel for producing power from kinetic energy of water, has contour provided with concave surface, where distance between curved side and straight line is in range of preset value of length of line when surface is curved |
CN102562654A (en) * | 2012-01-03 | 2012-07-11 | 大同北方天力增压技术有限公司 | Blade profile design method for impeller of radial-flow air compressor |
CN107795513A (en) * | 2017-12-12 | 2018-03-13 | 无锡市盛源汽车配件厂 | Water-pump impeller of automobile into boom protection is set |
DE202023001026U1 (en) | 2023-05-09 | 2023-06-07 | Michael Salomon | Jet turbine especially for waterfalls on transverse structures of watercourses |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE26039C (en) * | W. ZUPPINGER, Baurath in Ravensburg | Water motor with a horizontal axis | ||
DE187021C (en) * | 1906-03-31 | |||
AT95714B (en) * | 1921-05-26 | 1924-01-25 | Vitalis Ing Hauler | Cross-flow turbine with a wheel drum through which the water jet flows freely inside. |
US1622930A (en) | 1921-10-08 | 1927-03-29 | Karman Theodor Von | Turbo machine |
US1830860A (en) * | 1928-06-20 | 1931-11-10 | Arthur W Scoles | Striper |
GB524703A (en) * | 1939-02-03 | 1940-08-13 | Oswald Stott | Improvements in and relating to centrifugal fans |
US2753808A (en) | 1950-02-15 | 1956-07-10 | Kluge Dorothea | Centrifugal impeller |
JPS5813758B2 (en) * | 1976-12-09 | 1983-03-15 | 株式会社荏原製作所 | turbo blower impeller |
DE3118648A1 (en) | 1981-05-11 | 1983-02-10 | Rudolf 7500 Karlsruhe Amberger | Blade flow techniques and blade shapes for increasing efficiency by using the vortex-flow speed change effect in vortex-flow blades and the associated energy conversions in vortex-flow centrifugal pumps and exhausters |
US5993158A (en) * | 1997-10-17 | 1999-11-30 | Dbs Manufacturing, Inc. | Method and apparatus for aeration using flexible blade impeller |
DE29904668U1 (en) * | 1999-03-13 | 1999-06-02 | Grundfos A/S, Bjerringbro | Circulation pump impeller of radial design |
DE20206530U1 (en) * | 2002-04-25 | 2002-10-10 | Drews, Hartmuth, 25421 Pinneberg | Segment Wreath waterwheel |
-
2006
- 2006-02-14 AT AT0022806A patent/AT503184B1/en not_active IP Right Cessation
- 2006-12-27 EP EP06026890A patent/EP1818543B1/en active Active
- 2006-12-27 DK DK06026890.1T patent/DK1818543T3/en active
- 2006-12-27 PL PL06026890T patent/PL1818543T3/en unknown
- 2006-12-27 PT PT60268901T patent/PT1818543E/en unknown
- 2006-12-27 SI SI200631568T patent/SI1818543T1/en unknown
- 2006-12-27 ES ES06026890T patent/ES2404310T3/en active Active
-
2007
- 2007-01-23 BR BRPI0707797-1A patent/BRPI0707797A2/en not_active IP Right Cessation
- 2007-01-23 US US12/279,202 patent/US8641364B2/en not_active Expired - Fee Related
- 2007-01-23 EA EA200801746A patent/EA013916B1/en not_active IP Right Cessation
- 2007-01-23 CN CN2007800053990A patent/CN101395380B/en not_active Expired - Fee Related
- 2007-01-23 MY MYPI20083566 patent/MY150412A/en unknown
- 2007-01-23 UA UAA200811103A patent/UA93398C2/en unknown
- 2007-01-23 AU AU2007215355A patent/AU2007215355B2/en not_active Ceased
- 2007-01-23 WO PCT/AT2007/000026 patent/WO2007092970A1/en active Application Filing
- 2007-01-23 RS RS20080359A patent/RS52591B/en unknown
- 2007-01-23 NZ NZ570867A patent/NZ570867A/en not_active IP Right Cessation
- 2007-01-23 CA CA2654448A patent/CA2654448C/en not_active Expired - Fee Related
- 2007-01-23 ME MEP-73/08A patent/MEP7308A/en unknown
- 2007-01-23 GE GEAP200710896A patent/GEP20115209B/en unknown
- 2007-01-23 KR KR1020087021526A patent/KR101360875B1/en active IP Right Grant
- 2007-01-23 ZA ZA200807308A patent/ZA200807308B/en unknown
-
2008
- 2008-08-14 IL IL193448A patent/IL193448A/en not_active IP Right Cessation
- 2008-09-10 NO NO20083881A patent/NO20083881L/en not_active Application Discontinuation
- 2008-10-21 AT AT0165208A patent/AT507452A1/en not_active Application Discontinuation
-
2009
- 2009-09-24 HK HK09108761.1A patent/HK1130871A1/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PSEA | Patent sealed | ||
RENW | Renewal (renewal fees accepted) | ||
RENW | Renewal (renewal fees accepted) |
Free format text: PATENT RENEWED FOR 3 YEARS UNTIL 23 JAN 2017 BY DENNEMEYER SA Effective date: 20131218 |
|
LAPS | Patent lapsed |